Feed-governor for centrifugal separators.



J. J. BERRIGAN. FEED GOVERNOR FOB, OENTRIFUGAL SEPARATORS.

APPLIUATION FILED OUT-6, 1905.

' Patented June 8. 1909.

3 SHEETS-SHEET 1.

J. J..BBRRIGAN.

FEED GOVERNOR FOR GENTRIFUGAL SBPABATORS.

- 'APIf LIOATI'IOH FILED 0010,3905.

924,308- Patented June 8, 1909.

8 BHBETB-SHBET 2.

J. J. BERBIGAN.

FEED GOVERNOR FOR GENTRIFUGAL SEPARATORS.

APPLIUATION FILED OOT.6, 1905.

Patented June 8,1909.

3 SHEETS-SHEET 3.

WITNESSES:

UNITED STATES PATEN OFFICE.

JOHN :J. BERRIGAN, OF ORANGE, JERSEY.

FEED 0VERNOR FOR GEI Q'TRIEI J'GAL SEPARATORS.

Specification of Letters Patent.

Patented June 8, 1909.

Application filed October 6, 1905. Serial No. 281,593.

to, and means for controllin said regulating mechanism by the load wit in saidseparator; also in .the various combinations set forth in the claims. r

In the accompanying drawingsFigure 1 is a longitudinal section of a centrifugal separator for se arating solids and liquids, showing my l'eer governor in place. Fig. 2 is an end elevation and partial section, showing more. particularly the means for driving the spiral feed conveyer. Fig. 3 is an end elevatlon of the separator showing the governor spring and case in longitudinal section.

Similarnumbers and letters of reference indicate like arts.

The speci form of centrifugal separator herein illustrated is fully described and ,claimed in U. S. Letters Patent #827,903,

granted to me August 7, 1906.

struction of my improved feed governor appllcd thereto.

The cylinder 1 is rotated on its horizontal axis by a belt not shown, which passes over driving pulley 2; withinsaid cylinder is an eccentrically placed cylindrical separating vessel 3 having a central rotary shaft 4 car rying arms 5 which support scrapers 6 inclined propeller fashion. The cylinder head 7 has a hollow trunnion 8 received in a bearing in standard 10. The feed tube. 11 passing through said trunnion communicates at one end with the feed hopper 12, and at the other end with a delivery chamber 13, having an inclined s out 1.4.

In .the feed-tn e is a screw conveyor 15, on the shaft of which is a pulley 16, Fig. 2, which receives motion from pulley 17 through chain belt 18. Pulley 1.7 is fast one shaft 19 which is, journaled in the bed plate" of the machine, which shaft at its other end carries pulley 20, which through chain belt 21 receives motion from ulley 22, on the shaft ofdriving pulley 2. ecured by bolts upon the. head 23 is a cylindrical casing 4, on which is one of the cylinder.-trunnions, received and rotating in a'bearing in standard25.

The central shaft 4 within the separating vessel 3 is journaled in a roller bearing 23 contained in a sleeve formed on the one side of the head 23 and within the casing 24 and I in a similar bearing provided at the end of the casing of delivery chamber 13. Said shaft carries a gear 26 which engages with a pinion-27 fast one. shaft 28, journaled at its ends in cylinder head 23. and casin 24. Shaft 28 also carries the gear 29 whie engages with pinion 30 on the end ofa shaft 31., which passes through the cylinder trunnion, which is hollow, and also through the hollow supporting shaft of driving pulley 2. On

shaft 31 is keyed the collar 32, which carries the lcver 33, through which lever the feed valve Ais controlled in the manner herein after to be describe a I The operation of'the separator is as follows: The combined solid and liquid materials to 'be separated enter the hopper 12 from the delivery pipe 34 and are carried by the screw conveyor 15 to the spout 14,

whence they are delivered intothe separating vessel 3. By reason of the rotation, the said combined materials are thrown outwardly by centrifugal force a ainst the inner I will first describe the separator in its essential parts, and then point out the conperiphery of the wall of vesse 3. As soon'as the liquidforniing a ring around'sald wall reaches the opening .35 in cylinder head 7, 1t

escapes into a fixed annular chamber 36 and thence from any suitable delivery s out.

The solid material is removed rom the wall of the vessel by means of the scrapers 6, and through the inclination of said scrapers is carried into the cone 37 and escapes at chamber 40, and. so to the delivery pipe 4].,

Fig. 3.

Whatever, liquid does not escape throu h the opening 35 and hence may remain in t 0 material, drains back down the incline of the first cone 37, so that after the solid material gets to the second cone 38 and to the subsequent cones, it contains very little moisture;

whatever moisture there is, however, escapes through the o enlngs 42 which extend through the wal s of separating vessel 3-and As already stated, the lever 33 is connected by the link ,C and the ar'mB of' valve A- cylinder 1, which are in contact. Said liquid then accumulates in annular chambers 43, and is drawn off from them in any suitable manner. I Y r The rotation of the scrapers 6 by means of the shaft 4 is effected in the following manner: The shaft 31 which carries pimon 30 and passes through the hollow hub of driving pulley 2'is held substantially stationary by the governor spring in' the manner shortly to. be described. By reasonof the rotation of cylinder 1', the gear 29 travels around the fixed pinion 30and hence is rotated, and as a' consequence the pinion 27. on the shaft of said gear also rotated, and said pinion in I .turn rotates the gear 26 and consequently the-shaft 4,

- Theobject and purpose of the feed gov ernor which I am now about to describe is to regulate the incoming flow. of feed into pipe .34 and. to do-this automatically, in accord-- ance with the" load in the'separatin vessel.

To this'fend there is provided in said eed pipe 34 a salve A, which is p v gierated by the lever B, oonnected by the 1i 0' to the lever 33', which is fast ontheshaft 31*.of vpulley 22.

. Also ivoted to the end of lever 33 Isa rod D,

wine enters thecylindricalcasingiE, and is rovided at its lower end 'with' aheadFz, etween the 'headF and the scr ew Plug-G,

which enters the end of the casing E.1s 1nter'- posed a. helical 'spring The casi E. at

' its lower closedendis secured to the" gaps the machine;

If, for'any reason, an amount ;of fe e d, 'per given time, greater than that for which 1 the overnor is set, enters the machine," thenthe notion of the governor isjfto. shut off automatically the entrancepof'further feedand in that wa to, keepfthe feed supply uniform.

' This it oes in the-followin'g way It will be.

' obvious, that ifgang ove lusjdf material enters the separating vesse 3 the scrapers Swill at once encounter a greater resistance and hence will beiqtarded in their motion, The effect of this. retardation of the scrapers oper 'atin ,through't'h train of gears 26 to 30 is I art ytoro ate'the shaft-31'of ulle'yBO, and

ence to move the lever'8 3', rom, its horizontal 'o'sition. T The. amount of overload which s all' result in this tilting of the lever is regnlated-by' the tension of the helical spring H, and obviouslyithe greater the overload the greater will'be the angle over which the lever 33. is tiltei hence the tilting .ofsaid leveragainst the action of the s ring H tends more or less to close said va ve, and therefore, more or less sha 1. The combination in a centrifugal sepa- I rator for solids and liquids, of a selparatmgvessel, rotary, scrapers therein an means, controlled b the resistance offered to the movement 0 said scrapers by the material in said vessel, for regulating the supply of feed to said vessel.

2. The combination in a centrifugal separator for solids and liquids of a separating vessel, rotary scra ers therein, a feed conduit, a valve 111 sal conduit and mechanism controlled b the resistance offered to the movement 0 said scrapeis by the material in said vessel, for operating said valve.

3. The vcombination in a centrifugal separator for solids and liquids of- "a. rotary separating vessel, a central shaft therein,-

rotation of said vessel, a feed conduit, a valve in said conduit and mechanism controlled by said shaft for operatingsaid valve.

1 4. The combination with a centrifugal separator for solids and liquids having an inter nal rotary shaftand scrapers thereon, of an external shaft, afixed bearing therefor, a spring connected to said external shaft andopposin the rotation thereof in one directlon, a eed conduit, a valve in said conduit controlled by said shaft and intermediate gearin between said shafts.

5. 1e combinat on with a centrifugal separato'r for solids and liquids having an internal 'rotary shaft and scrapers thereon of an external shaft, a fixed bearing therefor, a

lever on said shaft, a spring connected to one end of said lever and to a fixed abutment, a feed conduit, a valve on said conduit controlled by said lever and intermediate gear-- ing between said shafts. V

A n testimony whereof I have signed-my name to'th'is specification in the presence of two subscribing witnesses.

JOHN J. BERRIGAN. Witnesses: I I

WM. H. SIEGMAN, PARK BENJAMIN, Jr.

'scrqpers on said shaft, means for rotating saidt at a speed different from the speed of- 

